Plants & Trees Encyclopedia

Saga — Adenanthera pavonina (Barbados pride, Coral-wood, Coralwood, Peacock flower fence, Red beadtree, Red sandalwood tree, Red sandalwood, Sandalwood tree; syn. Adenanthera gersenii Scheff., Adenanthera polita Miq., Corallaria parvifolia Rumph.) is a timber tree. This plant is found in the wild in India, where in each language it has its own name (for example in Kerala it is known as …

Rutabaga — The swede, or (yellow) turnip (Brassica napobrassica, or Brassica napus var. napobrassica) is a root vegetable that originated as a cross between the cabbage and the turnip. Its leaves can also be eaten as a leaf vegetable. The plant is believed to be a cross between the white turnip and the cabbage and to have originated in Europe …

Rue — Rue (Ruta) is a genus of strongly scented evergreen subshrubs 20-60 cm tall, in the family Rutaceae, native to the Mediterranean region, Macronesia and southwest Asia. Different authors accept between 8-40 species in the genus. The most well-known species is the Common Rue. The leaves are bipinnate or tripinnate, with a feathery appearance, and green to strongly glaucous …

Rosemary — Rosemary (Rosmarinus officinalis) is a woody, perennial herb with fragrant evergreen needle-like leaves. It is native to the Mediterranean region. It is a member of the mint family Lamiaceae, which also includes many other herbs. Forms range from upright to trailing; the upright forms can reach 1.5 m tall, rarely 2 m. The leaves are evergreen, 2-4 cm …

Rose, Hybrid Tea — Hybrid Tea is a Cultivar Group of roses, created by cross-breeding two different types of roses. Grown one flower to a long stem, they are supported by long, straight and upright stems. Most can be as tall as 1.8 metres and are repeat flowering. Each flower can grow to 8-12.5 cm wide. Hybrid Teas are the …

Rose, Hybrid Rugosa — Rosa rugosa (Rugosa Rose, Japanese Rose, or Ramanas Rose) is a species of rose native to eastern Asia, in northeastern China, Japan, Korea and southeastern Siberia, where it grows on the coast, often on sand dunes. It is a suckering shrub which develops new plants from the roots and forms dense thickets 1–1.50 m tall with …

Rose, Grandiflora — Grandifloras (Latin for “large-flowered”) were the class of roses created in the mid 1900s to designate back-crosses between hybrid teas and floribundas that fit neither category — specifically, the ‘Queen Elizabeth’ rose, which was introduced in 1954. Grandiflora shrubs are typically larger than either hybrid teas or floribundas, and feature hybrid tea-style flowers borne in small clusters …

Rose, French — Rosa gallica, (Gallic Rose, French Rose, or Rose of Provence) is a species of rose native to southern and central Europe eastwards to Turkey and the Caucasus. It is a deciduous shrub forming large patches of shrubbery, the stems with prickles and glandular bristles. The leaves are pinnate, with three to seven bluish-green leaflets. The flowers are …

Rose Miniature — Miniature – All of the classes of Old Garden Roses — gallicas, centifolias, etc. — had corresponding miniature forms, although these were once-flowering just as their larger forms were. As with the standard-sized varieties, miniature Old Garden roses were crossed with repeat-blooming Asian species to produce everblooming miniature roses. Today, miniature roses are represented by twiggy, repeat-flowering shrubs …

Rice — Domesticated rice Poaceae (“true grass”) family, Oryza sativa and Oryza glaberrima. These plants are native to tropical and subtropical southern Asia and southeastern Africa. Rice provides more than one fifth of the calories consumed worldwide by humans. (The term “wild rice” can refer to the wild species of Oryza, but conventionally refers to species of the related genus …